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https://www.readbyqxmd.com/read/28448840/a-cocktail-of-volatile-compounds-emitted-from-alcaligenes-faecalis-jbcs1294-induces-salt-tolerance-in-arabidopsis-thaliana-by-modulating-hormonal-pathways-and-ion-transporters
#1
Dipto Bhattacharyya, Yong Hoon Lee
In our previous study we showed that volatile organic compounds (VOCs) from Alcaligenes faecalis JBCS1294 (JBCS1294) induced tolerance to salt stress in Arabidopsis thaliana by influencing the auxin and gibberellin pathways and upregulating the expression of key ion transporters. The aim of this study was to evaluate the contribution of each VOC and blends of the VOCs on the induction of salt tolerance and signaling pathways. The key VOCs emitted from JBCS1294 were dissolved in lanolin and applied to one side of bipartite I-plates that contained Arabidopsis seeds on Murashige and Skoog (MS) media supplemented with NaCl on the other side...
April 12, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28447168/effect-of-carbon-sources-on-the-growth-and-ethanol-production-of-native-yeast-pichia-kudriavzevii-itv-s42-isolated-from-sweet-sorghum-juice
#2
L E Díaz-Nava, N Montes-Garcia, J M Domínguez, M G Aguilar-Uscanga
The importance of non-Saccharomyces yeast species in fermentation processes is widely acknowledged. Within this group, Pichia kudriavzevii ITV-S42 yeast strain shows particularly desirable characteristics for ethanol production. Despite this fact, a thorough study of the metabolic and kinetic characteristics of this strain is currently unavailable. The aim of this work is to study the nutritional requirements of Pichia kudriavzevii ITV-S42 strain and the effect of different carbon sources on the growth and ethanol production...
April 26, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28444442/high-accumulation-of-anthocyanins-via-the-ectopic-expression-of-atdfr-confers-significant-salt-stress-tolerance-in-brassica-napus-l
#3
Jihye Kim, Won Je Lee, Tien Thanh Vu, Chan Young Jeong, Suk-Whan Hong, Hojoung Lee
The ectopic expression of AtDFR results in increased accumulation of anthocyanins leading to enhanced salinity and drought stress tolerance in B. napus plants. Flavonoids with antioxidant effects confer many additional benefits to plants. Evidence indicates that flavonoids, including anthocyanins, protect tissues against oxidative stress from various abiotic stressors. We determined whether increases in anthocyanins increased abiotic stress tolerance in Brassica napus, because the values of B. napus L. and its cultivation area are increasing worldwide...
April 25, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28444301/soybean-nima-related-kinase1-promotes-plant-growth-and-improves-salt-and-cold-tolerance
#4
Wen-Jia Pan, Jian-Jun Tao, Tong Cheng, Ming Shen, Jin-Biao Ma, Wan-Ke Zhang, Qin Lin, Biao Ma, Shou-Yi Chen, Jin-Song Zhang
NEK (NIMA-related kinase) is known as a family of serine/threonine kinases which mainly participate in microtubule-related mitotic events in fungi, mammals and other eukaryotes. Our previous studies found that Arabidopsis NEK6 plays an important role in plant response to abiotic stress. We further investigated roles of NEK family in soybean and found that at least eight members can respond to abiotic stresses. Among them, only GmNEK1, a novel NEK member which is distantly-related to Arabidopsis NEK6, enhanced plant growth and promoted salt and cold tolerance in transgenic Arabidopsis plants...
April 21, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28443102/effect-of-hbdhn1-and-hbdhn2-genes-on-abiotic-stress-responses-in-arabidopsis
#5
Yuxin Cao, Xian Xiang, Mengting Geng, Qin You, Xi Huang
Dehydrin is a type of late embryogenesis abundant (LEA) protein. The dehydrin genes, HbDHN1 and HbDHN2, in Hevea brasiliensis were previously found to be induced at the wounding site of epicormic shoots, with local tissue dehydration identified as the key signal for laticifer differentiation. However, the exact role of the HbDHNs remains unknown. In this study, HbDHN1 and HbDHN2 expression was examined under multiple abiotic stresses; namely, cold, salt, drought, wounding, abscisic acid (ABA), ethylene (ET), and jasmonic acid (JA) treatment...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28439767/a-bacillus-subtilis-strain-as-probiotic-in-poultry-selection-based-on-in-vitro-functional-properties-and-enzymatic-potentialities
#6
Houda Hmani, Lobna Daoud, Mouna Jlidi, Karim Jalleli, Manel Ben Ali, Adel Hadj Brahim, Mansour Bargui, Alaeddine Dammak, Mamdouh Ben Ali
We have proposed and validate an in vitro probiotic selection, based on enzymatic potentialities associated to well-established probiotic functional properties. A new Bacillus subtilis HB2 isolate, selected based on its high extracellular enzyme production, was chosen as a probiotic candidate for application as animal feed supplement. The HB2 strain showed an excellent acid and bile salts tolerance, a strong adhesion to chick enterocytes and produced antimicrobials against pathogens. An in vivo trial in poultry farming was conducted to evaluate the HB2 probiotic performance...
April 24, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28439395/antioxidant-responses-under-salinity-and-drought-in-three-closely-related-wild-monocots-with-different-ecological-optima
#7
Mohamad Al Hassan, Juliana Chaura, María P Donat-Torres, Monica Boscaiu, Oscar Vicente
Some deleterious effects of drought, soil salinity and other abiotic stresses are mediated by the generation of oxidative stress through an increase in reactive oxygen species (ROS) that damage cellular membranes, proteins and DNA. In response to increased ROS, plants activate an array of enzymatic and non-enzymatic antioxidant defences. We have correlated the activation of these responses with the contrasting tolerance to salinity and drought of three species of the genus Juncus, viz. J. maritimus, J. acutus (both halophytes) and J...
March 2017: AoB Plants
https://www.readbyqxmd.com/read/28439284/the-translation-initiation-factor-1a-theif1a-from-tamarix-hispida-is-regulated-by-a-dof-transcription-factor-and-increased-abiotic-stress-tolerance
#8
Guiyan Yang, Lili Yu, Yucheng Wang, Chao Wang, Caiqiu Gao
Eukaryotic translation initiation factor 1A (eIF1A) functions as an mRNA scanner and AUG initiation codon locator. However, few studies have clarified the role of eIF1A in abiotic stress. In this study, we cloned eIF1A (TheIF1A) from Tamarix hispida and found its expression to be induced by NaCl and polyethylene glycol (PEG) in roots, stems, and leaves. Compared to control, TheIF1A root expression was increased 187.63-fold when exposed to NaCl for 6 h, suggesting a potential abiotic stress response for this gene...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28439282/overexpression-of-cucumber-phospholipase-d-alpha-gene-cspld%C3%AE-in-tobacco-enhanced-salinity-stress-tolerance-by-regulating-na-k-balance-and-lipid-peroxidation
#9
Tuo Ji, Shuzhen Li, Meili Huang, Qinghua Di, Xiufeng Wang, Min Wei, Qinghua Shi, Yan Li, Biao Gong, Fengjuan Yang
Plant phospholipase D (PLD), which can hydrolyze membrane phospholipids to produce phosphatidic acid (PA), a secondary signaling molecule, has been proposed to function in diverse plant stress responses. In this research, we characterized the roles of the cucumber phospholipase D alpha gene (PLDα, GenBank accession number EF363796) in growth and tolerance to short- and long-term salt stress in transgenic tobacco (Nicotiana tabacum). Fresh and dry weights of roots, PLD activity and content, mitogen activated protein kinase (MAPK) gene expression, Na(+)-K(+) homeostasis, expression of genes encoding ion exchange, reactive oxygen species (ROS) metabolism and osmotic adjustment substances were investigated in wild type (WT) and CsPLDα-overexpression tobacco lines grown under short- and long-term high salt (250 mM) stress...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28439277/expression-of-pennisetum-glaucum-eukaryotic-translational-initiation-factor-4a-pgeif4a-confers-improved-drought-salinity-and-oxidative-stress-tolerance-in-groundnut
#10
Tata Santosh Rama Bhadra Rao, Juturu Vijaya Naresh, Palakolanu Sudhakar Reddy, Malireddy K Reddy, Garladinne Mallikarjuna
Eukaryotic translational initiation factor 4A belong to family of helicases, involved in multifunctional activities during stress and non-stress conditions. The eIF4A gene was isolated and cloned from semi-arid cereal crop of Pennisetum glaucum. In present study, the PgeIF4A gene was expressed under the regulation of stress inducible Arabidopsis rd29A promoter in groundnut (cv JL-24) with bar as a selectable marker. The de-embryonated cotyledons were infected with Agrobacterium tumefaciens (LBA4404) carrying rd29A:PgeIF4A construct and generated high frequency of multiple shoots in phosphinothricin medium...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28438205/expression-of-the-clonostachys-rosea-lactonohydrolase-gene-by-lactobacillus-reuteri-to-increase-its-zearalenone-removing-ability
#11
Wen-Chun Yang, Tsui-Chun Hsu, Kuan-Chen Cheng, Je-Ruei Liu
BACKGROUND: Mycotoxins are secondary metabolites produced by filamentous fungi that can contaminate agricultural crops in the field as well as during harvest, transportation, processing, or storage. Zearalenone (ZEN), a non-steroidal estrogenic mycotoxin, produced by Fusarium species, has been shown to be associated with reproductive disorders in farm animals and to a lesser extent in hyperoestrogenic syndromes in humans. Thus, the decontamination of ZEN in foods and feeds is an important issue...
April 24, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28437448/expression-profiling-of-chrysanthemum-crassum-under-salinity-stress-and-the-initiation-of-morphological-changes
#12
Zhiyong Guan, Yitong Feng, Aiping Song, Xiaomeng Shi, Yachao Mao, Sumei Chen, Jiafu Jiang, Lian Ding, Fadi Chen
Chrysanthemum crassum is a decaploid species of Chrysanthemum with high stress tolerance that allows survival under salinity stress while maintaining a relatively ideal growth rate. We previously recorded morphological changes after salt treatment, such as the expansion of leaf cells. To explore the underlying salinity tolerance mechanisms, we used an Illumina platform and obtained three sequencing libraries from samples collected after 0 h, 12 h and 24 h of salt treatment. Following de novo assembly, 154,944 transcripts were generated, and 97,833 (63...
2017: PloS One
https://www.readbyqxmd.com/read/28436093/genome-wide-association-studies-to-identify-rice-salt-tolerance-markers
#13
Juan Patishtan, Tom N Hartley, Raquel Fonseca de Carvalho, Frans Jm Maathuis
Salinity is an ever increasing menace that affects agriculture world-wide. Crops such as rice are salt sensitive but its degree of susceptibility varies widely between cultivars pointing to extensive genetic diversity which can be exploited to identify genes and proteins that are relevant in the response of rice to salt stress. We used a diversity panel of 306 rice accessions and collected phenotypic data after short (6 h), medium (7d) and long (30d) salinity treatment (50 mM NaCl). A genome wide association study (GWAS) was subsequently performed which identified around 1200 candidate genes from many functional categories but this was treatment period dependent...
April 23, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28432978/cadmium-hampers-salt-tolerance-of-sesuvium-portulacastrum
#14
Mariem Wali, Soledad Martos, Laura Pérez-Martín, Chedly Abdelly, Tahar Ghnaya, Charlotte Poschenrieder, Benet Gunsé
It is well known that salinity reduces cadmium toxicity in halophytes. However, the possible interference of Cd with the mechanisms of salt tolerance is poorly explored. The aim of this study was to see whether Cd affects salt tolerance mechanisms in the halophyte Sesuvium portulacastrum. S. portulacastrum plants obtained from cuttings were grown in hydroponics for 3 weeks and then exposed to low (0.09 mM) or moderate (200 mM) NaCl concentrations, alone or in combination with 25 μM CdCl2. Microscopy observation revealed two strategies of salt tolerance: euhalophytism and secretion of salt by bladder cells...
April 13, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28432475/a-shinella-%C3%AE-n-acetylglucosaminidase-of-glycoside-hydrolase-family-20-displays-novel-biochemical-and-molecular-characteristics
#15
Junpei Zhou, Zhifeng Song, Rui Zhang, Caihong Chen, Qian Wu, Junjun Li, Xianghua Tang, Bo Xu, Junmei Ding, Nanyu Han, Zunxi Huang
β-N-Acetylglucosaminidases (GlcNAcases) are important for many biological functions and industrial applications. In this study, a glycoside hydrolase family 20 GlcNAcase from Shinella sp. JB10 was expressed in Escherichia coli BL21 (DE3). Compared to many GlcNAcases, the purified recombinant enzyme (rJB10Nag) exhibited a higher specificity activity (538.8 µmol min(-1) mg(-1)) or V max (1030.0 ± 82.1 µmol min(-1) mg(-1)) toward p-nitrophenyl β-N-acetylglucosaminide and N,N'-diacetylchitobiose (specificity activity of 35...
April 21, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/28431977/transcriptome-comparison-reveals-insights-into-muscle-response-to-hypoxia-in-blunt-snout-bream-megalobrama-amblycephala
#16
Bo-Xiang Chen, Shao-Kui Yi, Wei-Feng Wang, Yan He, Yan Huang, Ze-Xia Gao, Hong Liu, Wei-Min Wang, Huan-Ling Wang
The economic and biological significance of blunt snout bream (Megalobrama amblycephala) makes this species important to explore the underlying molecular mechanism of hypoxia response. In the present study, we compared the transcriptional responses to serious hypoxia in skeletal muscle among hypoxia tolerant (MT), sensitive (MS) and control (without hypoxia treatment, MC) M. amblycephala obtained according to the time difference of losing balance after hypoxia treatment. A total of 88,200,889 clean reads were generated and assembled into 44,493 unigenes...
April 18, 2017: Gene
https://www.readbyqxmd.com/read/28428760/the-variation-tendency-of-polyamines-forms-and-components-of-polyamine-metabolism-in-zoysiagrass-zoysia-japonica-steud-to-salt-stress-with-exogenous-spermidine-application
#17
Shucheng Li, Linlin Cui, Yujuan Zhang, Yunwen Wang, Peisheng Mao
To understand dynamic changes in polyamines (PAs) forms and components of polyamine metabolism in zoysiagrass (Zoysia japonica Steud.) response to salt stress with exogenous spermidine (Spd) application, two Chinese zoysia cultivars, z081 and z057, were exposed to sodium chloride stress for 2, 4, 6, and 8 days. The z057 cultivar possesses higher salinity tolerance than the z081 cultivar. Salt stress decreased the zoysiagrass fresh weight (FW) and increased free Spd and spermine (Spm) levels and soluble and insoluble putrescine (Put), Spd and Spm levels in both cultivars...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28424942/serratia-bozhouensis-sp-nov-isolated-from-sewage-samples-of-a-dairy-farm
#18
Fei Shang, Ting Xue, Man Wang, Xiaolin Chen, Li Yu, Ming Zhang
A Gram-negative, rod-shaped, salt-tolerant, non-pigmented, and non-spore-forming bacterium, designated strain W1(T) (type strain CICC 23797 = CGMCC1.14949), was isolated from sewage samples of a dairy farm in Bozhou, Anhui, China. Strain W1 was resistant to lincomycin, troleandomycin, rifamycin, and vancomycin. Sequence analysis of the 16S rDNA gene revealed that the strain showed sequence similarity of 98.2% with the closest related species Serratia quinivorans CP6a(T). The genomic DNA G+C content of the isolate was 52...
April 20, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28424718/comparative-performance-of-multivariable-agro-physiological-parameters-for-detecting-salt-tolerance-of-wheat-cultivars-under-simulated-saline-field-growing-conditions
#19
Salah E El-Hendawy, Wael M Hassan, Nasser A Al-Suhaibani, Yahya Refay, Kamel A Abdella
Field-based trials are crucial for successfully achieving the goals of plant breeding programs aiming to screen and improve the salt tolerance of crop genotypes. In this study, simulated saline field growing conditions were designed using the subsurface water retention technique (SWRT) and three saline irrigation levels (control, 60, and 120 mM NaCl) to accurately appraise the suitability of a set of agro-physiological parameters including shoot biomass, grain yield, leaf water relations, gas exchange, chlorophyll fluorescence, and ion accumulation as screening criteria to establish the salt tolerance of the salt-tolerant (Sakha 93) and salt-sensitive (Sakha 61) wheat cultivars...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28421735/a-self-healable-and-cold-resistant-supercapacitor-based-on-a-multifunctional-hydrogel-electrolyte
#20
Feng Tao, Liming Qin, Zhikui Wang, Qinmin Pan
Excellent self-healability and cold-resistance are attractive properties for a portable/wearable energy-storage device. However, achieving the features is fundamentally dependent on an intrinsically self-healable electrolyte with high ionic conduction at low temperature. Here we report such a hydrogel electrolyte comprising sodium alginate cross-linked by dynamic catechol-borate ester bonding. Since its dynamically cross-linked alginate network can tolerate high content inorganic salts, the electrolyte possesses excellent healing efficiency/cyclability but also high ionic conduction at both room temperature and low temperature...
April 19, 2017: ACS Applied Materials & Interfaces
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